John h



1. H. HARPER.

Portable Furnace.

Jennv u." HARPER, Vor e rrrrsunc, PENNSYLVANIA.

l Latas Patent Np. 97,634, dated Decanter 7, 1869. i

PoRTABLn I'tmNAcrz.`

4 v i y The Schedule referred to llutherse Letters Patent and makingpart of the same,

To all whomit may concern: i

Beit known that I, JOHN H. HARPER, of Pitts- `bnrgfin the countyofAllegheny, and inthe State of Pennsylvania, have invented certain newand useful Improvements in Cooking-Attach ment for Stoves; and

dov hereby declare that the following is afull; clear, and exactdescription thereof', refereneebeinghad to the ac companying drawings,and to` the letters of reference marked thereon, making a part of' thisspecification.

The nat-ure of my` invention consists in'the construction andarrangement of, a fcookinglattachment for stoves, by the useof whichiire may be made under onehole of the stove only, if so'desired` `lborder. to enable others skilled in the art to4 which mylinventionappertains, to make and use the same, I will now proceed to describe itsconstruction and operation, referring to the `annexed drawings, inwhichl i Figure 1 is a side elevation, and

`exception thatat eqiialidistances 'apart areformed l three smallerrecessesb b,.for a purpose that will be hereinafter setforth. y l

Within the collar A, at its lower edge, are three projecting flanges@ i,and'` in the centre of the spaces between said ilanges are placedvertical ribsdd, which extend -up'wardto the upper` edge of the rim B.

The grate` G is in the form `of a basket, with horizontal rim e aroundits upper edge, said rim being of l proper size to fit Vwithin thec'ollar A.

"Inthe rim e `are three notches, of suitablesize, and at l equal.distances apart, so 4that when the grate is passed downward from thetop ofthe collar A, the `ribs dd will pass through said notches, and therim at last rest'upon the anges 't fi, when the grate` may b'eturned,so'that the ribs d dwill come over the rim, and consequently lock Vthegrate.

l'lhe griddle or lid VD' is made to iit on top of the rim l" B', andprovided on the under side with a series oi' zigzag teeth, m m, ofsuitable size to fit within the recesses a a on the rim, and also withthree smaller teeth n n, at proper distances apnrtto t within thesmaller recesses b b. y

The lid D acts as a damper, and when turned to one side, so that thelarger teeth mrestin the smaller tofeed the lire.- l

The collar A need not, as above described, necessaf rilyvfit within thestove-hole. It may rest` upon the stove, only sothatthe grate fit-swithin the hole.

Any kettle or other vessel may be placed upon the zigzag rim B, and givesuicient air-space to supply the fire. l

The ribs l d answer, also, for the purpose of sup porting a smallervessel,'so that it may not come down within the collar, and pnt out thei're.

recesses b, as shown in fig. 1, it will' leave anair--space Theadvantages of this cooking-attachment are obvious. When it is desired tocook only for one or two persons, it will not. be necessary to make iirein the vwhole stove, but justin one hole, and thus save fuel,

besides the discomfort of having too warm a fire in hot weather.

Having thus fully described my invention,

What I claim as new, and desire to secure by Letters Patent, is`- l. Thecollar A, provided with the zigzag rim B, constructedy as described,substantially as and for the purposes herein set'forth.

`2. The griddle or lid D, provided with depending flange, havingprojections m m and n, constructed as described, substantially as andfor the purposes herein set forth.

3. The ribs d d, placed vertically within the collar A, substantially asand for the purposes herein. set g,

forth.

4. The combination ofthe collar Afzigzag rim B,

,E1n WILLIAMS, Jr.,

SETE WILMoT.

